Mechanical motor



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E. S. HARPST.

MEGHANIGAL MOTOR. No. 406,440. Patented July .9, 1889.

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UNITED STATES PAL-TENT OFFICE,

EDGAR S. I-IARPST, OF TYLER, TEXAS.

MECHANICAL MOTOR.

SPECIFICATION forming part f Letters Patent No. 406,440, dated July 9, 1889.

Application filed March l1, 1889. Serial No. 302,864. (No model.)

To all whom it may concern..-

Be it known that I, EDGAR S. HARPST, a citizen of theUnited States, residing at Tyler, in

. the county of Smith and State of TeXas, have 41 invented certain new and useful Improvements in Mechanical Motors; and I do hereby declare the following'to be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to mechanical motors; and it consists in the construction and novel combinations of parts, as hereinafter described, illustrated in the accompanying drawings, and pointed out in the appended claim.

The object of my invention Iis to provide a motor of cheap and simple con struction, which is adapted for driving various classes of light machinery, and more especially for use in connection with fans, such as are commonly used for creating currents of air in bar-rooms, dining-rooms, and the like.

In the accompanying drawings, Figure l is a side View of myimproved motor as applied to a fan-frame; Eig. 2, an end View of the same.

In the above drawings, A designates the ceiling of a room, and B one of the sidewalls.

In constructing my motor it ismy object to so arrange the parts thereof that the weight employed will be suspended from the ceiling of the room, instead of some temporary structure located between the iioor and the ceiling, whereby the weight will have a greater range of movement, and thus serve to keep the motor in operation for alongcr period of time before it becomes nec( ss vtry to rewind the operating-rope, and the above object I attain bythe arrangement now to be described.

Secured to the side wall B of the room, at a suitable point intermediate the floor and ceiling, is a suitable frame O, which is provided with the upper and lower forwardly-projecting arms c c'. Journaled in bearings in the outerends of the arms c is a shaft D, upon which is rigidly mounted a drum E, grooved, as shown, for the reception of the coils of a rope F, which serves to support the weight presently described, the flange e of the drum being provided with ratchetteeth, as shown.

Upon one end of the shaft D is loosely mounted a gear-wheel G, the latter bein g provided with a pawl g, which engages with the teeth on the flange e.

Journaled in bearings in the outer ends of the arms c is a shaft H, carrying at one end a pinion I, which meshes with the gear-wheel G on the shaft D, as shown.

For imparting the motive power to the parts just described, I employ a Weight M, suspended from the cord or rope F by means of the hook n, which passes through an eye in the weight. One end of the cord or rope F is attached to the winding-drum E. It then passes over pulley O, supported in hanger o, securedto the ceiling, then around a pulley m, carried by Ithe weight, and is secured at its other end to a hook o', attached to the ceiling. It will be seen that by thus suspending the weight the rangeof movement of thesame is hequivalent to the height of the room in which the motor is located.

In order to impart an oscillatory movement to the fan -frame, I employ the following means: Upon the shaft I-I is mounted awheel K, which is provided with a cam-shaped recess k of the contour shown. Upon an arm of the frame Ois pivoted one end of an oscillating rod S, which is provided with an antifriction roller which rides in the cam-shaped recess lo in the wheel K, the other end of the rod being pivoted to one end of a connectingrod T, the other end of the latter being provided with a suitable eye or opening for attaching it to a fan-frame or the like.

The operation of my device will be readily understood from the foregoing description, taken in connection with the accompanying drawings, and need not be set forth in detail.

The combination of the supporting-frame O, provided with the forwardly-projecting arms c c', the shaft D, having its bearingsin the arms c', the drum E, loosely mounted on said shaft, and the gear-wheel G, rigidly mounted on said shaft intermediate said arms c', said drum E being provided with atoothed flange e, a pawl g, pivoted to said gear-wheel and engaging the teeth of said iiange, the shaft H, having its bearings in the arms c, carrying at one end the pinion I, which meshes with the gear-wheel G, and at its other end the wheel K upon the outside of one of the arms c, said to the ceiling and attached at tsopposit-e end Wheel K being` provided upon its outer face to the ceiling', and the weight M, carried by With the ca1nshaped recess la, the rod S, pvsaid rope, substantially specified. oted to the frame and carrying intermediate In testimony whereof Iafiix my signature in 5 its ends the anti-friction roller traveling in presence of two Witnesses.

said recess, the conneetn0-r0d T ada ated to 1 A y a A m be connected at one endbto a fan-frnie, its hD TAR b' HARPS! opposite end being pivoted to the upper end XVitnesses: ofthe rod S, the rope F, attached at 011e end JEFF. D. BURNS,

1o to the drum E, passing,` over a pulley attached H. H. ROWLAND.

It is hereby certified that in Letters Patent No. 406,440, granted July 9, 1889, upon the application of Edgar S. Harpst, of Tyler, Texas, for an improvement in Meehanioal Motors, errors appear in the printed speoieation requiring the following oorreetions, viz: In line 45, page l, the Word rigidly should read loosely; and in line 5l, and that the Letters Patent should be read with these corrections therein that the saine may conform to the record of the same page, the Word loosely should read rgidlr ease in the Patent Office.

Signed, oountersigned, and sealed this 30th day of July, A. D. 1889.

CYRUS BUSSEY, Assistant Secretary 0j' the Interior.

' [SEAL] Commissioner of Patents. 

